Poster board corner



FIG. 1 is a perspective view of a poster board corner showing my new design;

FIG. 2 is a side elevational view of the poster board corner of FIG. 1;

FIG. 3 is an end view of the poster board corner taken along the line 3—3 in FIG. 2; and,

FIG. 4 is a top plan view of the poster board corner of FIG. 1.

The broken lines showing environment in the drawings are for information purposes only and form no part of the claimed design. 

The ornamental design for a poster board corner, as shown and described. 